With the tremendous advances in technology, gas-sensing devices are being popularly
used in many distinct areas, including indoor environments, industries, aviation, and …

Artificial olfaction based on gas sensor arrays aims to substitute for, support, and surpass
human olfaction. Like mammalian olfaction, a larger number of sensors and more signal …

High-performance gas sensors prepared using p-type oxide semiconductors such as NiO,
CuO, Cr 2 O 3, Co 3 O 4, and Mn 3 O 4 were reviewed. The ionized adsorption of oxygen on …

The accelerated evolution of the Internet of Things has brought new challenges to the gas
sensors, which are required to work persistently under harsh conditions, like high humidity …

Sensing technology has been widely investigated and utilized for gas detection. Due to the
different applicability and inherent limitations of different gas sensing technologies …

With the advantages of metal conductivity, large specific surface area, and rich surface
functional groups, two-dimensional (2D) MXenes have shown great potential in the field of …

An electronic nose (e‐nose) is a device that can detect and recognize odors and flavors
using a sensor array. It has received considerable interest in the past decade because it is …

Metal oxide based core-shell (CS) nanostructures have been studied for gas sensing
applications to mitigate poor selectivity. When designing core-shell nanostructures with nn …

This article discusses the main uses of 1D and 2D nanomaterials in the development of
conductometric gas sensors based on metal oxides. It is shown that, along with the …

The novel brush-like (B–) SnO 2@ ZnO hierarchical nanostructures (HNSs) are successfully
synthesized by using a simple two–step hydrothermal method. The SnO 2 nanowires (NWs) …